A sock drawer has 2 blue 4 white pair, 4 black pair. What is the probability you can pick out 1 blue, 1 white, or 1 black?

You replace each pair after picking.

1 Answer
Aug 13, 2016

#P(B or W or B) = 1#

Explanation:

There are 10 pairs of socks altogether.
There are only three colours of socks, blue, white or black.

The probability that you will pick one these 3 colours is 100%!

However we answer this as #P(B or W or B) = 1#

A probability of 1 means the outcome is guaranteed.